coulter



(No Model.)

2 'Shefis-Sheet -1. G. A. COUL-TER.

ELECTRIC HORSE DISGONNEUTOR.

Patented July 9 zzlaz.

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ATTORNEY N. PETERS, PMv-Lilhogmpiur, Wnhhgicn. D. C.

(No Model.) 2 Sheets-iiet 2..

* G A. OOULTER.

ELECTRIC HORSE DISGONNEUTOR.

110.406.6329; Patented Jul 9,1889.

muuTggi i imlli illll //V VE/VTOR 6609a JZ. Cod??? ATTORNEY N PETERS. PhdloLilMmpMr. WasMngwn. O. C.

* UNITED STATES PATENT OFFICE.

GEORGE COULTER, OF OMAHA, NEBRASKA, ASSIGNOR OF ONE-HALF TO JAMES C. ISH, OF SAME PLACE.

ELECTRIC HORSE- DISCONNECTOR.

SPECIFICATION forming part of Letters Patent No. 406,629, dated July 9, 1889. I

Application filed September 15, 1887. Serial No. 249,811. (No model.)

.To all whom it may concern: rear side of the same with a nut c, by which Be it known that I, GEORGE A. COULTER, the tension of the spring is regulated. This of Omaha, in the county of Douglas andState spring, it will be seen, exerts a tension on of Nebraska, have invented a new and useful the bolt 6 the links 6 e, and the short ends Improvementin Electric Horse-Releasing Apof levers C, so that the tendency of the spring 5 5 paratus for-Fire-Engine Houses, of which the is to open the stall-doorsas shown in dotted following is a specification. lines, as soon as the latch shall have been re- My invention is in the natnre of animleased.

proved electrical apparatus for automatically To give access to the tension-regulating 1o releasing the horses from their stalls in the nut a a hand-hole f is left in the casing of 60 fire-engine house by the electric impulse on the middle partition. The latch b, which the fire-alarm circuit, whereby the horses may holds the doors closed, ,is provided with a be geared to the engine with. the least possihorizontally-acting lever-hook b on the illble delay; and it consists in the peculiar conside of the door, which is (see Fig. 3) operstruction and arrangement of'the devices for ated by a sliding spring-bolt b on the outside. 0 looking and opening the stall-doors and elec- This lever-hook is made to engage with a vertrical devices for tripping and releasing the tically-sliding rod g, Figs. 2, 3, and 5, whose same, as will be hereinafter fully described. lower end slides through guides or keepers h Figure 1 is a font elevation of the stableit above and below the hook. When this stalls. Fig. 2 is a rear or inside view of the rod is raised above the lever-hook, this action, 70 same with the box containing the electrical it will be seen, withdraws the rod from'the devices opened. Fig. 3 is a horizontal seclever-hook b, and allows the stall-doors to tion through line 00 a? of Fig. 1. Fig. 3 is an fly open in response to the spring. The rods enlarged sectional view of the locking-latch. g are at their upper ends jointed to one end 2 5 Fig. 4 is an enlarged view of the electrical of a lever g, Fig. 5, the other end of which is 75 devices in the box, and Fig. 5 is adetail of the connected to a short rod or link g which in latching and releasing devices for the door of turn is connected to one arm of an elbow-lethe stall. ver 9 The elbow-levers of both doors are A A A are three partitions forming two connected for simultaneous operation by a stalls, in front of which are doors B B, that horizontal connectingrod '6 above them, and 80 are normally kept closed, but which, when this train of mechanism is in turn connected the horses are to be released, automatically by rod j to one arm 01"; a T-shaped lever T in fly open. These doors are hinged at a a, Fig. the boX containing the electrical trip devices.

1, and have locking-latches 1) upon the sides (See Fig. 4.)

opposite the hinges. These doors each bear D D are a pair of electro-magnets, whose 85 a bracket 0, carrying in it a friction-roller 0', terminal wires are connected to the posts i 1 arranged about a vertical axis, and against and proceed thence to a battery E and the which friction-rollers there bear the outer fire-alarm circuit. F is the armature of the ends of horizontal levers C C. These levers magnet, which is held close against the poles 40 are fulcrumed at (1, Figs. 1 and 3, to a plate of the magnet by a spring 3' in addition to 0 011 the casing between the doors, through the attractive influence of the magnet. which casing at which point there is formed To one arm of the T-shaped lever T there a hole to givepassage to link-bars c e, that is jointed a link-bar 76, whose upper end is are connected to the short ends of thelevers connected to a lever Z, fulcrumed to a plate G, and which links pass into the hollow space or at m, and having at its upper end a piv- 95 of the middle partition between the stalls, otod spring yielding knuckle-plate '11., which and there connect with a cross-head e, which is adapted to yield and pass by the armature in turn is connected to a screw-bolt 6 that ot the magnet when moved backward, but passes through a vertically-arranged semiwhich, when moved forward, engages with elliptical spring e and is provided on the the armature and is held thereby. To limit I00,

the range of movement of the lever Z, stops 0 0 are arranged upon opposite sides of the same.

To the T-shaped lever on the opposite side from link is there is jointed a vertical bar 13 which is pulled upwardly by a spiral spring p, attached to a hook-rod'p secured by an adjusting-nut in the top of the box. The upper end of this bar 1) is slotted and loosely connected by a pin to a horizontal lever g, which is fulcrumed at q to the box, and, extending through the side of the same, is attached to a vertical rod r. This rod r is at its lower end connected to a crank r on a rockshaft 4*, which extends to the outside of the stable, and is connected rigidly to and operated by a hand-lever R. Now, when this lever R is deflected so as to bring down the rod r within, it has the effect of setting the trip devices as follows: As rod 7' comes down it forces down lever q, and this, acting upon vertical bar p, rocks the T-shaped lever. The motion of this lever throws up link and lever Z, and throws the knuckle end of lever Z behind the armature. The same movement also serves to force down the rods g, which, engaging with the lever-hooks I), hold the door closed. In this position of parts the apparatus is set ready to be tripped and the doors opened by the electric fire-alarm circuit. As the circuit is normally closed the armature is held upon the poles of the magnets by the combined influence of the spring 7' and the attraction of the magnet, which together are sufficient to hold the lever Z against the tension of the spring 19'; but as soon as a fire-alarm signal causes a break in the circuit the attractive influence of the magneton its armature ceases, and the armature being then only held by the slight tension of spring j the superior tension of spring 19' causes lever Z to push back and pass by the armature, allowing the T-shaped lever to be shifted by the spring 19', which has the effect of raising the locking-rods g from the hooks b and releasin g the doors, so that they fly open in response to their spring-actuated levers.

In order to lock the armature of the magnet so as to render it inoperative for automatic action, astop-rod s is guided through a plate 8 in the box, and is jointed to a lever t, fulcrumed in the middle and extending through the side of the box and attached'to a vertical rod to, which at its lower end is jointed to a crank-arm on a rock-shaft w, Which'has upon the outside a handle to for turning it, and also stops 20 n7 for limiting its oscillation. By pulling the rod to down through this handle the lever tand stop-rod s are thrown into line, as in Fig. 4:, and the stop-rod is brought to abut against the armature, so that it cannot move. This also furnishes means for quickly opening the stable-doors at will by simply turning handle 20' when the magnets are not charged.

Having thus described my invention, what I claim as new is 1. The combination,with the two stall-doors hinged adjacent to each other, and electromagnetic releasing devices, of a pair of hori- Zontal levers G C, having a stationary fulcrum on the casing and their free ends loosely connected to the doors, the link-bars e 6, connected to the short ends of the levers, the cross-head e, screw-bolt e spring e and nut 6 substantially as shown and described.

2. The combination,with the stall-doors and the locking devices for the same, of the rods 11 j, the T shaped lever T, vertical bar p, attached to one arm thereof and provided with an upwardly pulling spring 19, lever q, loosely connected to the bar and having vertical pull- GEORGE A. COULTER.

Witnesses:

W. 1-1. ELLIS, JOHN ANDERSON. 

